CN203431716U - Laser zoom illuminator - Google Patents
Laser zoom illuminator Download PDFInfo
- Publication number
- CN203431716U CN203431716U CN201320402377.0U CN201320402377U CN203431716U CN 203431716 U CN203431716 U CN 203431716U CN 201320402377 U CN201320402377 U CN 201320402377U CN 203431716 U CN203431716 U CN 203431716U
- Authority
- CN
- China
- Prior art keywords
- laser
- focus
- angle
- luminaire
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses a laser zoom illuminator. The laser zoom illuminator comprises a laser device and an optical zoom lens set matched with the laser device, wherein an embedded shaping lens used for beam expanding or a set of embedded lenses used for beam expanding is/are arranged on a light path of an outgoing part of the laser device. The laser zoom illuminator is higher in adaptability.
Description
Technical field
The utility model belongs to night vision monitoring field, specifically relates to a kind of laser variable-focus luminaire.
Background technology
In prior art, laser emitting angle for coupling fiber output semiconductor laser illuminator is limited to the general maximum shooting angle of optical fiber rising angle all in 20 degree left and right, thereby when the varifocal imaging that coordinate to surpass this angle is synchronous, will have some limitations, can not be applicable in wide-angle varifocal imaging night vision device.
In order to make coupling fiber output semiconductor laser practicability and effectiveness more, exploitation wide-angle coupling fiber output semiconductor laser luminaire is extremely urgent, is necessary that exploitation has a kind of wide-angle coupling fiber output semiconductor laser illuminator of larger adjusting range.
Summary of the invention
The purpose of this utility model is to provide a kind of laser variable-focus luminaire, realizes wide-angle laser throw light on by the dispersion angle of the built-in extender raising of fiber coupled laser diode fiber coupled laser diode, improves the adaptability of luminaire.
The technical solution adopted in the utility model is:
A luminaire, comprises laser instrument and is matched with the optical zoom mirror group of this laser instrument, in the light path of the outgoing parts of described laser instrument, disposes embedded shaping eyeglass or the embedded shaping lens set for expanding.
First, about expanding principle, a light beam having collimated, the angle of divergence is that θ waist is S0, we can see that far-field divergence angle will reduce if beam diameter can increase.The advantage place of expanded light beam that Here it is.In addition, little dispersing can make Gaussian beam focusing obtain better.Beam expanding lens is used to some extent on optical device, but all less than using in laser instrument, this has affected the scope of application of laser variable-focus luminaire to a certain extent.
For this reason, according to the utility model, the built-in laser instrument for the shaping eyeglass that expands is for launching the illumination laser of wide-angle, then the shaping of scioptics group just can realize the wide-angle laser illumination in monitoring field, meet the multi-demands in market, improve its applicability.
Above-mentioned laser variable-focus luminaire, described laser instrument is fiber coupled laser diode, accordingly, described outgoing parts are fiber connector.
Above-mentioned laser variable-focus luminaire, described fiber connector is configured to optical zoom mirror group coaxial.
Above-mentioned laser variable-focus luminaire, described embedded shaping lens set at least comprises beam expanding lens and focus lamp.
Accompanying drawing explanation
Fig. 1 is the schematic diagram according to a kind of laser variable-focus luminaire of the present invention.
In figure: 1, coupling fiber output semiconductor laser, 2, embedded wide-angle shaping fiber connector, 3, zoom optical frames group.
The specific embodiment
A kind of wide-angle coupling fiber output semiconductor laser illuminator with reference to shown in explanation accompanying drawing 1, comprises coupling fiber output semiconductor laser 1, embedded wide-angle shaping fiber connector 2, zoom optical frames group 3.
Coupling fiber output semiconductor laser 1 is as the light source of luminaire.
Fiber coupled laser diode is more in communications field application, and matched fiber, also can be applied to field of laser illumination naturally.
Described embedded wide-angle shaping fiber connector 2, on the basis of length that only changes ordinary optic fibre connector, by built-in shaping lens, is shaped as optical fiber head rising angle the light beam that connects rising angle much larger than optical fiber direct.
Described embedded wide-angle fiber connector 2 can lead to fiber optic connector and zoom optical frames group and guarantee coaxial connection, and by zoom optical frames group, realizes maximum angle and approach the direct rising angle of described optical fiber head, the light angle of zoom control on a large scale.
The eyeglass or the lens combination that in described embedded wide-angle shaping optics connector, have pair optical fiber rising angle to carry out shaping, the while only changes the length of optical fiber head, and other structure coupling parts are identical with ordinary optic fibre header structure.
The fiber coupled laser diode 1 of described built-in beam expanding lens is for launching wide-angle illumination laser, and a set of lenses at least comprises beam expanding lens and focus lamp, is respectively used to expand and focus illumination laser.The implementation method of the wide-angle zoom laser illumination device that this case provides can realize the wide-angle laser illumination in monitoring field, has reached actual market requirement.
Wide-angle is that to this, those skilled in the art is to be understood that than one of existing laser illuminator relative concept.
About beam expanding lens, in order to be conducive to understand, it is done to a simple declaration, the most general beam expanding lens type originates from Galilean telescope, generally includes the concavees lens of an input and the convex lens of an output.Input mirror sends an empty focal length light beam to outgoing mirror.The beam expanding lens of general low multiple is all used the manufacture of this principle, because it is simple, volume is little, price is also low.The general little sphere that is designed to as much as possible differs, low wavefront distortion and achromatism.Its limitation is can not spatial accommodation filtering or carry out expanding of large multiplying power.
A kind of beam expanding lens is Kepler's beam expanding lens.In fact when needing space filtering or carrying out the expanding of large multiplying power, the telescope that people generally use Kepler to design.Kepler telescope generally has convex lens as input eyeglass, and the light beam that real focal length is focused on sends on output element.In addition, can carry out implementation space filtering by place aperture in the focus of first lens.
The utility model can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not the restriction novel to this; this is novel be also not limited in above-mentioned for example; the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement; for example, so long as the laser instrument of coupling fiber output; the change that optical fiber head is carried out optical fiber direct connect the change of rising angle, also should belong to this novel protection domain.
Claims (4)
1. a laser variable-focus luminaire, comprises laser instrument and is matched with the optical zoom mirror group of this laser instrument, it is characterized in that, in the light path of the outgoing parts of described laser instrument, disposes embedded shaping eyeglass or the embedded shaping lens set for expanding.
2. laser variable-focus luminaire according to claim 1, is characterized in that, described laser instrument is fiber coupled laser diode, and accordingly, described outgoing parts are fiber connector.
3. laser variable-focus luminaire according to claim 2, is characterized in that, described fiber connector is configured to optical zoom mirror group coaxial.
4. according to the arbitrary described laser variable-focus luminaire of claims 1 to 3, it is characterized in that, described embedded shaping lens set at least comprises beam expanding lens and focus lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402377.0U CN203431716U (en) | 2013-07-08 | 2013-07-08 | Laser zoom illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402377.0U CN203431716U (en) | 2013-07-08 | 2013-07-08 | Laser zoom illuminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431716U true CN203431716U (en) | 2014-02-12 |
Family
ID=50060751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320402377.0U Expired - Fee Related CN203431716U (en) | 2013-07-08 | 2013-07-08 | Laser zoom illuminator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI569912B (en) * | 2014-12-08 | 2017-02-11 | 國立高雄應用科技大學 | Laser focusing optical module and laser focusing method |
-
2013
- 2013-07-08 CN CN201320402377.0U patent/CN203431716U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI569912B (en) * | 2014-12-08 | 2017-02-11 | 國立高雄應用科技大學 | Laser focusing optical module and laser focusing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4610789A3 (en) | Focus adjusting multiplanar head mounted display | |
| WO2015006784A3 (en) | Planar waveguide apparatus with diffraction element(s) and system employing same | |
| US10101587B2 (en) | Display apparatus | |
| CN102494299A (en) | Semiconductor laser illuminating source | |
| CN104298058A (en) | Laser source and projection display device | |
| CN103676159B (en) | A kind of improve the light path system that light spot shape regulates spot size automatically | |
| CN103246063B (en) | A kind of adjustable laser beam expander | |
| CN203431716U (en) | Laser zoom illuminator | |
| CN105301781B (en) | The optical system and its light field angle of divergence adjusting method of zero pole point can be eliminated | |
| CN109459824B (en) | A two-stage spatial optical coupling device capable of improving the spatial optical coupling efficiency of single-mode fiber | |
| CN104199191A (en) | Beam expander and beam-expanding system | |
| CN106646896A (en) | Flow cytometer light beam shaping system based on gradient refractive index lens | |
| CN203350524U (en) | Zooming laser illuminator capable of controlling size of luminous surface | |
| CN209879150U (en) | Near-to-eye display equipment with adjustable focal length | |
| CN202209637U (en) | Zoom laser illuminator | |
| CN203241609U (en) | An imaging illumination lens | |
| Xie et al. | Off-axis three-mirror reflective zoom system based on freeform surface | |
| CN107121766A (en) | A kind of continuous zooming optical device | |
| CN106896500B (en) | Display device | |
| WO2019054887A3 (en) | Method of creating a multi-planar image by using varifocal lenses and a device to realize this method | |
| CN105301790B (en) | The optical system and its illumination angle of divergence adjusting method of central bright spot can be eliminated | |
| CN208255548U (en) | The adjustable two waveband laser focusing system of focus | |
| CN204116722U (en) | Beam expanding lens and beam-expanding system | |
| CN108181699B (en) | Reverse modulation cat eye optical system with large field of view approaching diffraction limit | |
| CN204903869U (en) | Optical structure with adjustable adopt illumination angle of divergence of diffraction optical element and lens combination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20160708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |